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SEC FORM 4 SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940 		 
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
GRIFFIN MICHELLE RENEE
(Last) (First) (Middle)
C/O ADAPTIVE BIOTECHNOLOGIES CORP.
SUITE 200
(Street)
SEATTLE WA 98102
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Adaptive Biotechnologies Corp [ ADPT ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
02/13/2020
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $31.71 02/13/2020 A 8,888 (1) 02/13/2030 Common Stock 8,888 $0.00 8,888 D
Explanation of Responses:
1. The option will vest in equal monthly installments over one year, subject to continued service as a director through such vesting date.
Remarks:
/s/ Michelle Griffin by Eric Billings, attorney-in-fact 02/18/2020
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
ADAPTIVE BIOTECHNOLOGIES CORPORATION

LIMITED POWER OF ATTORNEY
FOR SECTION 16(a) REPORTING

	KNOW ALL PERSONS BY THESE PRESENTS, that, in addition to the appointees
designated as having powers of attorney regarding reporting requirements under
Section 16(a) of the Securities Exchange Act of 1934, as amended (the "Exchange
Act") with respect to equity securities of the Company, we hereby make,
constitute and appoint Eric Billings as the undersigned's true and lawful
attorney-in-fact (the "Attorney-in-Fact"), with full power of substitution and
resubstitution, each with the power to act alone for the undersigned and in the
undersigned's name, place and stead, in any and all capacities to:

	1.	Prepare, execute, deliver and file with the United States Securities and
Exchange Commission, any national securities exchange and Adaptive
Biotechnologies Corporation (the "Company") any and all reports (including any
amendment thereto) of the undersigned required or considered advisable under
Section 16(a) of the Exchange Act, and the rules and regulations thereunder,
with respect to the equity securities of the Company, including Form 3 (Initial
Statement of Beneficial Ownership of Securities), Form 4 (Statement of Changes
in Beneficial Ownership), and Form 5 (Annual Statement of Changes in Beneficial
Ownership); and
	2.	Seek or obtain, as the undersigned's representative and on the undersigned's
behalf, information on transactions in the Company's equity securities from any
third party, including the Company, brokers, dealers, employee benefit plan
administrators and trustees, and the undersigned hereby authorizes any such
third party to release any such information to the Attorney-in-Fact.

	The undersigned acknowledges that:

	1.	This Limited Power of Attorney authorizes, but does not require, the
Attorney-in-Fact to act at his or her discretion on information provided to such
Attorney-in-Fact without independent verification of such information;
	2.	Any documents prepared and/or executed by the Attorney-in-Fact on behalf of
the undersigned pursuant to this Limited Power of Attorney will be in such form
and will contain such information as the Attorney-in-Fact, in his or her
discretion, deems necessary or desirable;
	3.	Neither the Company nor the Attorney-in-Fact assumes any liability for the
undersigned's responsibility to comply with the requirements of Section 16 of
the Exchange Act, any liability of the undersigned for any failure to comply
with such requirements, or any liability of the undersigned for disgorgement of
profits under Section 16(b) of the Exchange Act; and
	4.	This Limited Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations under Section
16 of the Exchange Act, including, without, limitation, the reporting
requirements under Section 16(a) of the Exchange Act.

	The undersigned hereby grants to the Attorney-in-Fact full power and authority
to do and perform each and every act and thing requisite, necessary or
convenient to be done in connection with the foregoing, as fully, to all intents
and purposes, as the undersigned might or could do in person, hereby ratifying
and confirming all that the Attorney-in-Fact, or his or her substitute or
substitutes, shall lawfully do or cause to be done by authority of this Limited
Power of Attorney.

	This Limited Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 or 5 with respect to the
undersigned's holdings of and transactions in equity securities of the Company,
and shall only be revoked upon the earliest of (i) revocation by the undersigned
in a signed writing delivered to the Attorney-in-Fact or to the Secretary of the
Company, (ii) termination of the undersigned's service as an employee or
director (as applicable) of the Company, (iii) termination of the
Attorney-in-Fact's service as an officer or other employee of the Company, or
(iv) execution of a subsequent power of attorney by the undersigned which
specifically provides for the revocation of any prior power of attorney
regarding reporting requirements under Section 16(a) of the Exchange Act .

	This Limited Power of Attorney shall be governed and construed in accordance
the laws of the State of Washington without regard to the laws that might
otherwise govern under applicable principles of conflicts of laws thereof.

	IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney
to be executed as of September 20, 2019.
	Signature: /s/ Michelle Griffin
	Name: Michelle Griffin